125 lines
2.9 KiB
C
125 lines
2.9 KiB
C
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/* QTI crypto Driver
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*
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* Copyright (c) 2014-2015, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __CRYPTO_MSM_QCEDEVI_H
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#define __CRYPTO_MSM_QCEDEVI_H
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#include <linux/interrupt.h>
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#include <linux/miscdevice.h>
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#include <crypto/hash.h>
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#include <linux/platform_data/qcom_crypto_device.h>
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#include <linux/fips_status.h>
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#include "qce.h"
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#define CACHE_LINE_SIZE 32
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#define CE_SHA_BLOCK_SIZE SHA256_BLOCK_SIZE
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enum qcedev_crypto_oper_type {
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QCEDEV_CRYPTO_OPER_CIPHER = 0,
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QCEDEV_CRYPTO_OPER_SHA = 1,
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QCEDEV_CRYPTO_OPER_LAST
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};
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struct qcedev_handle;
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struct qcedev_cipher_req {
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struct ablkcipher_request creq;
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void *cookie;
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};
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struct qcedev_sha_req {
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struct ahash_request sreq;
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void *cookie;
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};
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struct qcedev_sha_ctxt {
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uint32_t auth_data[4];
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uint8_t digest[QCEDEV_MAX_SHA_DIGEST];
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uint32_t diglen;
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uint8_t trailing_buf[64];
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uint32_t trailing_buf_len;
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uint8_t first_blk;
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uint8_t last_blk;
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uint8_t authkey[QCEDEV_MAX_SHA_BLOCK_SIZE];
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bool init_done;
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};
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struct qcedev_async_req {
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struct list_head list;
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struct completion complete;
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enum qcedev_crypto_oper_type op_type;
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union {
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struct qcedev_cipher_op_req cipher_op_req;
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struct qcedev_sha_op_req sha_op_req;
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};
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union {
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struct qcedev_cipher_req cipher_req;
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struct qcedev_sha_req sha_req;
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};
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struct qcedev_handle *handle;
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int err;
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};
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/**********************************************************************
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* Register ourselves as a misc device to be able to access the dev driver
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* from userspace. */
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#define QCEDEV_DEV "qcedev"
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struct qcedev_control {
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/* CE features supported by platform */
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struct msm_ce_hw_support platform_support;
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uint32_t ce_lock_count;
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uint32_t high_bw_req_count;
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/* CE features/algorithms supported by HW engine*/
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struct ce_hw_support ce_support;
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uint32_t bus_scale_handle;
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/* misc device */
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struct miscdevice miscdevice;
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/* qce handle */
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void *qce;
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/* platform device */
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struct platform_device *pdev;
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unsigned magic;
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struct list_head ready_commands;
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struct qcedev_async_req *active_command;
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spinlock_t lock;
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struct tasklet_struct done_tasklet;
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};
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struct qcedev_handle {
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/* qcedev control handle */
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struct qcedev_control *cntl;
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/* qce internal sha context*/
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struct qcedev_sha_ctxt sha_ctxt;
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};
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void qcedev_cipher_req_cb(void *cookie, unsigned char *icv,
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unsigned char *iv, int ret);
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void qcedev_sha_req_cb(void *cookie, unsigned char *digest,
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unsigned char *authdata, int ret);
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#endif /* __CRYPTO_MSM_QCEDEVI_H */
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